<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>welcome to my world</title> </head> <body> <h1 align="left">我是一级标题</h1> <h2 align="left">我是二级标题</h2> <h3 align="left">我是三级标题</h3> <h4 align="left">我是四级标题</h4> <h5 align="left">我是五级标题</h5> <h6 align="left">我是六级标题</h6> <p align="center">我是一个<br>段落标签</p> <hr color="blue" width="2000px" size="200px" align="center"> </body> </html>
标签：Web,前端,welcome,笔记,标题,world From： https://www.cnblogs.com/bravexiaoxi/p/17565646.html